Note that this is a discontinued product. You may want to visit the brand's page here to browse their newer products.

What reviewers think

Magazine reviewers and YouTubers have tried this product—so we've summarized their strongest opinions below.

Product Strengths

  • Anthem Room Correction (ARC) can be operated via a Windows computer or telephone app, with the newly released ARC Genesis compatible with Mac, Windows, iOS, and Android.
  • It has a MM/MC phono stage and a DAC, with the ability to assign inputs to either a pure analog path or a digitized path with adjustable parameters and ARC.
  • Extensive functionality, with a programmable input/output matrix and an intuitive menu structure that responds quickly.
  • Incorporates bass management and can allow a user to configure up to a 2.2 channel audio system with either stereo or mono subwoofers.

Product Considerations

  • It lacks an HDMI input
  • The STR's knob doesn't stand proud of the faceplate quite far enough for one finger to comfortably rest on it, and the knob isn't knurled, making it difficult to turn without a finger slipping off.
  • With Convert Analog enabled, the reviewer could hear the STR's noise from their listening chair, which was a bit disappointing.
  • It lacks a headphone jack
  • The app is not great, with unsuccessful connection and unreliable work

Comparisons (according to reviewers)

  • Vs Mark Levinson 8505 amplifier: The Levinson has a more sophisticated, smoother, and subtler sound with more clearly rendered soft reverbs and decays.
  • Vs McIntosh C47 preamplifier-DAC: As a line-level DAC and/or preamp, the STR's sound was as transparent as the C47's.

Takeaway: The STR is well-featured and transparent-sounding, with analog and digital inputs and outputs, and input-assignment flexibility. It includes ARC Genesis room-correction software, which optimizes the sound to the room.

How useful are hifi reviews? We consider them useful for three things: (1) Surfacing new products you should demo in person at a dealer. (2) Learning which products reviewers unanimously praise as the best they've ever heard (this means they probably are legitimately great). (3) Identifying a product's unique attributes that satisfy your idiosyncratic needs and tastes. Beyond that, we  discount what reviewers say because they heap praise on everything—rarely being negative for fear of souring relationships with manufacturers. Further, they seldom have more than a couple products on-hand at once, relying on their imperfect memories to compare to past products.

Compared to their other products

We think it's helpful to understand how this product fits into the brand's full lineup (below). To learn more about these products, visit the brand's page.

MDX Series

  • Positioning: The entry-level distribution solution, designed for multi-zone audio setups.
  • Description: Offers a great balance of performance and affordability, featuring fully powered independent-zone amplification with subwoofer connections. Unlike the more advanced AVM Series, focuses on simplifying custom audio installations with ARC Genesis room correction for each zone, making it ideal for users with multiple rooms and a moderate budget.

MRX Series

  • Positioning: Serves as Anthem's line of high-end multichannel A/V receivers.
  • Description: Features robust multichannel capabilities and 8K support, making it a strong choice for home theater enthusiasts. Compared to the STR Series, which focuses on stereo performance, includes Anthem Room Correction and supports Dolby Atmos, DTS:X, and IMAX Enhanced.

STR Series

  • Positioning: Anthem's premium stereo lineup, offering integrated amplifiers, preamplifiers, and power amplifiers.
  • Description: Stands out with its high power output and advanced DAC technology, providing exceptional stereo performance. Unlike the MRX Series, which is tailored for multichannel setups, focuses on delivering high-fidelity stereo sound with Anthem Room Correction.

AVM Series 8K

  • Positioning: Anthem's flagship line of A/V processors, designed for the ultimate home theater experience.
  • Description: Features cutting-edge processing capabilities and extensive connectivity options, including 8K HDMI support. It surpasses the MRX Series in terms of processing power and flexibility.
See all the brand's products

Read the reviews

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An excellent review of a great product
/
Publisher
/
3/1/2022
An excellent review of a great product
Publisher
/
3/1/2022

Manufacturer's notes

The revolutionary STR Preamplifier is a new type of audio component that gives you more control and more refinements, including more connection options and more advanced technology, in a single, easy-to-use component. Designed, engineered, and Crafted in Canada, the STR Preamplifier combines the benefits of an advanced preamp with the power of a processor, as well as functions like leading-edge DAC, onboard Anthem Room Correction (ARC®), customizable bass manager for mono or stereo sub outs, MM and MC phono inputs—far more than the average preamplifier.
  • Asynchronous USB Audio: Supports 32-bit/384kHz PCM and DSD 2.8/5.6 MHz sources
  • Digital Inputs: Coaxial, optical, and AES/EBU up to 192kHz
  • Phono Inputs: MM and MC
  • Digital Processing: 64-bit accumulation
  • Sample Rate Conversion: 32-bit/192kHz
  • Available Finishes: Black or Silver
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Average Price
$2,501-$5,000
Used Products
85
 Available (Scroll Down)
Brand Popularity
64
 of 600+
Badges
Top 50 Brand
Top 250 Brand
Products
18
Founded
1998

Our take on the brand

Anthem is a hifi brand best known for their AV receivers and preamp processors that feature their proprietary ARC Genesis room correction technology with a calibration microphone. Their flagship AVM 90 8K preamp processor, featuring dual ESS ES9038Pro DACs and quad independently calibrated subwoofer outputs, is praised for superior channel separation and lower frequency handling, while their MRX SLM AV receiver offers a uniquely slim design that fits behind televisions.
Julian Shapiro
ExtremeHiFi
Brand Page
Most data on ExtremeHiFi is proprietary—researched and reviewed after thousands of hours of loving labor. We archive our site's data and its pages on Archive.org and take legal action against those repurposing the data. We also fingerprint data to know when text and numbers came from us first.
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What if you spend a bit more?

M66
5499
5499
/
12
Reviews
NAD
NAD Electronics pioneered affordable hifi equipment by focusing on essential features for good sound, with their classic NAD 3020 becoming the best-selling hifi amplifier in history. Their Masters Series features DirectDigital technology, the world's first closed-loop digital amplification that corrects output every 10 nanoseconds.
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Our Summary

Product Strengths

  • Offers a wide range of features rarely seen in a component of this type, including a high-performance DAC, analog preamplifier, BluOS streaming, Dirac Live room correction, and a high-quality phono stage
  • Includes Dirac Live Bass Control for up to four independent subwoofers, allowing for optimized bass performance and integration, and Dirac Live improves clarity and bass definition
  • Uses ESS Sabre DAC chips, known for wide dynamic range and low noise/distortion
  • Features a modular design that lets one expand its capabilities, helping to ensure product longevity and up-to-date functionality
  • Offers versatile connectivity with a comprehensive array of inputs and outputs, including balanced XLR, AES/XLR, and HDMI eARC

Product Considerations

  • BluOS is limited to a maximum resolution of 24-bit/192kHz
  • Does not offer home-theater bypass, though it could be implemented in a future upgrade
  • Dirac Live iPhone app not always successful at recognizing microphone
  • Touchscreen does not behave in the same way as an EverSolo or a FiiO, because one cannot browse music libraries with it, it is really just for input and settings and just the kind of nitty-gritty of daily use, but not music playback
  • Some found the styling a bit overdone, while others appreciated the display

Comparisons (according to reviewers)

  • Is considered better overall than the Anthem STR due to a more sophisticated room correction system and a fully featured multiroom streaming platform with wireless capability
  • Sounds more lit up top to bottom with greater avidity than PS Audio, and it better exposes surface textures, and layer separation is more easily seen
  • The MC input quite clearly resolves more finer detail and it better inks tonal colors compared to the MC phono stage built into the Cambridge Audio Alva TT 2 turntable

Takeaway: The NAD M66 is a sophisticated and feature-rich streaming preamplifier, offering a versatile set of tools for audiophiles seeking precise sound reproduction and optimized bass performance. With its modular design and future-proofing capabilities, the M66 is a great choice for anyone building a high-end hifi system.

Video review

Our take on the brand

NAD Electronics pioneered affordable hifi equipment by focusing on essential features for good sound, with their classic NAD 3020 becoming the best-selling hifi amplifier in history. Their Masters Series features DirectDigital technology, the world's first closed-loop digital amplification that corrects output every 10 nanoseconds.
Julian Shapiro
ExtremeHiFi Writer
Visit our
M66
page
Product Page
Lupe
9850
9850
/
10
Reviews
Mola Mola
Mola Mola is recognized for bringing innovative Class D amplification to hifi through the work of renowned engineer Bruno Putzeys. Their products deliver clean and efficient performance with extremely low distortion, and their DAC is considered among the best.
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Our Summary

Product Strengths

  • Incredibly saturated sound packed with information, resulting in a deep and detailed presentation
  • Separate gain paths for MM and MC cartridges, optimizing performance for each
  • Extremely silent and powerful signal transmission capabilities
  • Offers a wide range of settings to optimize performance for any cartridge, including extensive gain and loading options, and dozens of equalization curves
  • Parameters can be adjusted on the fly using a custom Mola Mola app
  • Design allows it to get out of the way of the music, allowing the music to swell and breathe majestically

Product Considerations

  • The new review sample took some 300 hours to stabilize
  • A slight faltering of absolute pitch definition and texture below about 40-45 Hz
  • Some may find the sound too neutral and challenging—preferring a more lush sound
  • With so many parameters to adjust, people may use the unit's abilities as a tone control and stray away from the intended EQ curve
  • There are so many options, that it may be changed too far

Comparisons (according to reviewers)

  • Versus GrandiNote Celio mk IV phono preamplifier, Lupe reminded the reviewer more of their Class A GrandiNote Celio mk IV phono preamplifier than the other of my references—ESE Lab Nibiru MC
  • Versus ESE Lab Nibiru MC, each of those features could be pointed out as Lupe's advantages, although they were not as prominent as with Nibiru MC

Takeaway: The Mola Mola Lupe is a versatile and high-performing phono stage that delivers a sophisticated and musical sound. Its extensive features and convenient app control make it a great choice for vinyl enthusiasts who want to optimize their listening experience.

Video review

Our take on the brand

Mola Mola is recognized for bringing innovative Class D amplification to hifi through the work of renowned engineer Bruno Putzeys. Their products deliver clean and efficient performance with extremely low distortion, and their DAC is considered among the best.
Julian Shapiro
ExtremeHiFi Writer
Visit our
Lupe
page
Product Page
P1
10000
10000
/
10
Reviews
Lumin
Lumin Music, known for launching the world's first DSD-capable streamer, develops all hardware and software in-house to ensure seamless integration across their product line. Their digital sources are praised for delivering warm, analog-like sound quality, with features like upsampling to DSD 256 and dual-drive music servers that require zero setup configuration.
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Our Summary

Product Strengths

  • Combines a network streamer, DAC, and preamplifier with digital and analog inputs, offering versatility
  • Features Leedh Processing lossless volume control, which minimizes distortion and loss of resolution, maintaining sound quality even at high attenuation levels
  • High-quality build with an aluminum chassis and a well-designed internal layout, including dual toroidal transformers and a Femto Clock System
  • Has three HDMI inputs with 4k passthrough and ARC (Audio Return Channel), making it work as part of a multimedia system

Product Considerations

  • Analog input signals are digitized because the P1's volume control operates in the digital domain
  • The Lumin app is not as graphically compelling as Roon, nor is it as easy to navigate and manage a music library
  • When the volume is set at '100' or the output level is set to 'fixed,' both Leedh and the conventional volume controls are bypassed
  • It appears to have no discernible colorations of its own and delivers extremely high resolution, probably more than most systems will be able to realize

Comparisons (according to reviewers)

  • Compared to the AURALiC Aries G1.1, the P1 delivers a considerably more realistic, musical, and engaging sound
  • Compared to the Copland CSA 100 amplifier, the P1 is a more musical and competent sounding player with greater resolution, extension, dynamics, and ease

Takeaway: The Lumin P1 is a versatile network player, DAC, and preamplifier offering high-quality sound and a wide range of features. It delivers a powerful and immersive listening experience.

Video review

Our take on the brand

Lumin Music, known for launching the world's first DSD-capable streamer, develops all hardware and software in-house to ensure seamless integration across their product line. Their digital sources are praised for delivering warm, analog-like sound quality, with features like upsampling to DSD 256 and dual-drive music servers that require zero setup configuration.
Julian Shapiro
ExtremeHiFi Writer
Visit our
P1
page
Product Page
P30A
8995
8995
/
9
Reviews
Hegel
Known for producing all-in-one integrated amplifiers, Hegel has become a favorite among hi-fi enthusiasts and dealers worldwide. Their amplifiers are particularly praised for their exceptional bass control, attributed to their high damping factor, which ensures precise management of even difficult-to-drive speakers like planar magnetics and dipoles. With competitive pricing and high performance, Hegel integrateds stand out as some of the best options available for audiophiles seeking simplicity and excellence in a single component.
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Our Summary

Product Strengths

  • Allows the music to play as intended, with transparency being a key attribute
  • Offers excellent control, grip, and dynamic headroom
  • Fully balanced design from input to output, maximizing performance with balanced sources
  • Provides a very quiet background, improving separation and detail
  • Very low noise floor, revealing a lot of detail without sounding analytical

Product Considerations

  • The volume control lacks a digital readout
  • Minimalist design with a basic remote that some may find lacking
  • There are only two XLR inputs
  • The simple lines may not appeal to those seeking a visually flashy product

Comparisons (according to reviewers)

  • Compared to the Hegel H390, the P30A/H30A surpasses it, making the H390 sound inferior
  • Compared to the Luxman M900U, the Hegel H30A exhibits greater soundstage depth
  • Compared to the Constellation Revelation Series, the P30A/H30A revealed plenty of sonic information but didn't sound stilted or forced, though Constellation had "peer into the recording" transparency that the Hegel combo probably can't match
  • Compared to older Hegel models, the newer models sound more extended and focused in the upper frequencies and are slightly warmer than neutral compared to the older versions' more apparent tilt toward warmth

Takeaway: The Hegel P30A is an excellent preamplifier that prioritizes transparency and control, letting the music shine through with exceptional detail and soundstage depth, and minimal coloration of its own. It ensures a clean, powerful, and natural presentation.

Video review

Our take on the brand

Known for producing all-in-one integrated amplifiers, Hegel has become a favorite among hi-fi enthusiasts and dealers worldwide. Their amplifiers are particularly praised for their exceptional bass control, attributed to their high damping factor, which ensures precise management of even difficult-to-drive speakers like planar magnetics and dipoles. With competitive pricing and high performance, Hegel integrateds stand out as some of the best options available for audiophiles seeking simplicity and excellence in a single component.
Julian Shapiro
ExtremeHiFi Writer
Visit our
P30A
page
Product Page

What else competes at this price?

Edge NQ
4999
/
Released
Cambridge Audio
Impressively revealing – our most detailed pre-amplifier and network player with StreamMagic award-winning streaming built-in, hand-picked components, and built-in DAC with digital inputs including TV ARC and Bluetooth aptX HD.
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Cambridge Audio pioneered the use of toroidal transformers in power amplifiers, a technology now widely adopted by high-end audio companies. The brand stands out for using premium amplification technology across their product range, from Class A/B amplifiers in their wireless earbuds to Hypex Ncore modules in their EVO series, while maintaining accessible price points between their CX and Edge product lines.
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Our Summary

Product Strengths

  • Exemplary build quality, with a visually pleasing design
  • The StreamMagic app is well-made and capable, offering a good user experience
  • Delivers music in an extremely lifelike manner, limited more by the source than its own limitations
  • Offers a strong musical sense of rhythm across all inputs, contributing to a well-rounded performance
  • Presents a clear, bold, and spacious presentation

Product Considerations

  • The volume dial may be slightly loose
  • Lacks a phono analog input
  • The acceptance angle of the remote sensor is limited
  • The USB has trouble with large music collections
  • The high frequencies can be bright with the system

Comparisons (according to reviewers)

  • Vs Musical Fidelity M8Xi: The M8Xi has more power output and exhibits more control over loudspeakers, but lacks the built-in streaming of the Edge NQ
  • Vs Naim electronics: The Edge system is neutral, and not as warm as the Naim electronics
  • Vs Gold Note DS-10: Provides a bigger soundstage and more detail
  • Vs PS Audio DSD Jr: The Cambridge Audio Edge NQ and the PS Audio DSD Jr are sonically comparable, but the NQ delivers more precise lateral focus

Takeaway: The Cambridge Audio Edge NQ is a versatile, well-designed preamplifier and network streamer that delivers high-quality sound. It provides an enjoyable listening experience, making it a great choice for those seeking both performance and elegant aesthetics.

Video review

Our take on the brand

Cambridge Audio pioneered the use of toroidal transformers in power amplifiers, a technology now widely adopted by high-end audio companies. The brand stands out for using premium amplification technology across their product range, from Class A/B amplifiers in their wireless earbuds to Hypex Ncore modules in their EVO series, while maintaining accessible price points between their CX and Edge product lines.
Julian Shapiro
ExtremeHiFi Writer
Visit
Edge NQ
Page
Product Page
SP25 Prisma
4985
/
Released
2022
Primare
The SP25 Prisma is a multi-channel processor designed for both cinephile and audiophile, composed of carefully considered and crafted features and functionality to provide the best home cinema experience for the greatest number of people.
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Primare is a Scandinavian hifi brand whose UFPD 2 Amplification technology provides a consistent 26dB feedback loop gain across the entire audio range, making their amplifiers exceptionally stable and accurate. Their modular design approach lets users customize their systems by adding or upgrading components like DACs and network modules.
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Our Summary

Product Strengths

  • The SP25 Prisma includes 4K dynamic HDR switching and eARC
  • Eleven channels of processing and preamplification
  • Dual eight channel DAC chips allow for unique digital to analogue conversion, allocating four channels of conversion when delivering signal to the pair of front left and right analogue outputs
  • Versatile, with single ended analog inputs, USB, coaxial and optical digital inputs, and HDMI inputs
  • Prisma streamer, wired and wireless

Product Considerations

  • Good surround sound gets expensive fast
  • Operation and setup can be complex

Comparisons (according to reviewers)

  • The SP25 Prisma lacks the power amplifiers of the SPA25 Prisma, making it only an AV processor or preamplifier

Takeaway: The SP25 Prisma is designed for cinephiles and audiophiles. It provides the best home cinema experience with carefully considered features and functionality.

Video review

Our take on the brand

Primare is a Scandinavian hifi brand whose UFPD 2 Amplification technology provides a consistent 26dB feedback loop gain across the entire audio range, making their amplifiers exceptionally stable and accurate. Their modular design approach lets users customize their systems by adding or upgrading components like DACs and network modules.
Julian Shapiro
ExtremeHiFi Writer
Visit
SP25 Prisma
Page
Product Page
Serene
2698
/
Released
2021
Holo Audio
Check on Amazon
Holo Audio has established itself as a leader in the modern mid-level R-2R DAC movement, focusing on creating DACs with a natural, rich sound that emphasizes musicality over pure detail. Like Denafrips, Holo Audio is known for precise engineering, low noise levels, and exceptional value, offering performance that rivals far more expensive competitors. With a similar approach and price range, Holo Audio is frequently mentioned alongside Denafrips as a top choice for audiophiles seeking high-quality sound without the high-end price tag.
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Our Summary

No items found.

Product Strengths

  • Highly detailed, clear, and clean sound with musicality, but without sterility
  • The KTE version includes a beautiful aluminum remote
  • Truth, neutrality, and accuracy, making it fun to listen to music
  • Enhanced spatial presentation, adding force and rhythmic nuance
  • First class build quality
  • It does not have a built-in DAC or phono preamp

Product Considerations

  • The buttons on the remote are a bit loose
  • It is not possible to directly select inputs, it is necessary to click through

Comparisons (according to reviewers)

  • Compared to ModWright LS-99, the Serene KTE is more accurate and neutral, while the ModWright LS-99 is juicier
  • Compared to Linear Tube Audio MicroZOTL, the Linear Tube Audio MicroZOTL added more midrange warmth and flavor

Takeaway: The Serene is a preamplifier that offers a clean and neutral sound, and it is excellent for those who want to hear the sound of other components without coloration. It is built with high-quality components.

Video review

Our take on the brand

Holo Audio has established itself as a leader in the modern mid-level R-2R DAC movement, focusing on creating DACs with a natural, rich sound that emphasizes musicality over pure detail. Like Denafrips, Holo Audio is known for precise engineering, low noise levels, and exceptional value, offering performance that rivals far more expensive competitors. With a similar approach and price range, Holo Audio is frequently mentioned alongside Denafrips as a top choice for audiophiles seeking high-quality sound without the high-end price tag.
Julian Shapiro
ExtremeHiFi Writer
Visit
Serene
Page
Product Page
Alto MKII
4999
/
Released
AGD
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AGD Productions uses GaN (Gallium Nitride) technology in their amplifiers, which are housed in glass tubes reminiscent of classic vacuum tubes, delivering high power from a compact size with near-perfect square waves. The amplifiers are designed to be upgradeable as technology advances, with GaN modules that can be replaced, while handling complex impedance loads similar to high-end Class-A or SET tube amps.
Expand Details

Our Summary

Product Strengths

  • Fully balanced design provides less noise and coloration to the sound.
  • Supports both moving magnet (MM) and moving coil (MC) phono cartridges with a high-performance phono stage.
  • Passive ladder volume control with precision resistors provides superior channel separation, low distortion, and high signal integrity.
  • Superior noise performance and extended bandwidth, with a very low THD+N and wide frequency response.
  • Large, high-resolution display is visible from a distance

Product Considerations

  • Limited features for its price, lacking an internal DAC, room correction, or bass management.
  • Small, non-standard form factor might not match other hifi equipment aesthetically.
  • Limited to one balanced input and one balanced output.
  • Reviewers noted a chintzy plastic remote that needs to be synced.
  • Sensitive to cable changes and may exhibit high-frequency noise if XLR cables are not connected

Comparisons (according to reviewers)

  • The Alto was equal in sonic performance to the Amped America AAP-1, but the AAP-1 has dead-neutral tonality.
  • There is not a lot missing between the Alto and the Bricasti Design M20 preamplifier in terms of sound, but at a little more than double the price, the Bricasti Design M20 had better dynamics and ultra-fine resolution.
  • Both the Alto and the Pass Labs XP-12 stereo preamp are very high-end stereo preamps that do just that—do what they say on the box.
  • Trilogy's set emerged rounder, bloomier, more massive, and atmospheric against the quick snappy team AGD that prioritized dynamics, outlines, clarity, and had its spatial projections sensibly more oxygenated.
  • The Alto is like the Anthem without the DAC and streamer.

Takeaway: The Alto preamplifier is well-engineered to provide clean, high-quality sound, and it's a good choice for audiophiles who prioritize core preamp functions. It offers great performance for vinyl and digital sources when additional features aren't needed.

Video review

Our take on the brand

AGD Productions uses GaN (Gallium Nitride) technology in their amplifiers, which are housed in glass tubes reminiscent of classic vacuum tubes, delivering high power from a compact size with near-perfect square waves. The amplifiers are designed to be upgradeable as technology advances, with GaN modules that can be replaced, while handling complex impedance loads similar to high-end Class-A or SET tube amps.
Julian Shapiro
ExtremeHiFi Writer
Visit
Alto MKII
Page
Product Page
S4
3999
/
Released
KECES
Single-ended, zero feedback circuit topology and demanding pure Class A valve operation and removing the need for a phase splitter.
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Keces Audio specializes in power conditioning and filtering through their high-quality toroidal transformers and circuits that separate digital and analog grounding. Their products use thick aluminum chassis to block EMI/RFI interference, and they're particularly known for their S3 DAC/AMP that offers balanced, uncolored sound with high resolution and transparency.
Expand Details

Our Summary

No items found.

Product Strengths

  • Includes an Optical Phono Stage, which is a bargain compared to other products with just optical capabilities
  • Clean and natural sound, with the internal phono stage being more than adequate for most setups
  • Well-built with excellent quality inputs, including Neutrik XLR connectors, and a machined aluminum remote
  • Excellent value for money, considering its build quality, features, and sound quality
  • Features a built-in dedicated headphone amplifier, with the headphone output offering a good, clean, and natural sound

Product Considerations

  • Only provides a single set of RCA inputs, though it has two XLR inputs
  • Dip switches on the rear for determining the cartridge type are not as user-friendly as a switch
  • LEDs on the front of the power supply and amp are very bright and can be distracting in a dark room
  • High gain may not be suitable for high-sensitivity speakers, and a tiny amount of noise may be audible with sensitive speakers when nothing is playing
  • Placement could prove tricky for some due to size

Comparisons (according to reviewers)

  • Phono stages are more forgiving compared to Yamaha, and every album sounded better than on the Yamaha
  • It is a bargain compared to Pro-Ject, which does not do optical and does not have two balanced inputs

Takeaway: The KECES S4 is a versatile and well-built preamp with a clean, natural sound and an impressive phono stage, including a rare optical cartridge input. It offers value and can be the heart of a high-quality hifi system.

Video review

Our take on the brand

Keces Audio specializes in power conditioning and filtering through their high-quality toroidal transformers and circuits that separate digital and analog grounding. Their products use thick aluminum chassis to block EMI/RFI interference, and they're particularly known for their S3 DAC/AMP that offers balanced, uncolored sound with high resolution and transparency.
Julian Shapiro
ExtremeHiFi Writer
Visit
S4
Page
Product Page

Note that this is a discontinued product. You may want to visit the brand's page here to browse their newer products.

What reviewers think

Magazine reviewers and YouTubers have tried this product—so we've summarized their strongest opinions below.

Product Strengths

  • Anthem Room Correction (ARC) can be operated via a Windows computer or telephone app, with the newly released ARC Genesis compatible with Mac, Windows, iOS, and Android.
  • It has a MM/MC phono stage and a DAC, with the ability to assign inputs to either a pure analog path or a digitized path with adjustable parameters and ARC.
  • Extensive functionality, with a programmable input/output matrix and an intuitive menu structure that responds quickly.
  • Incorporates bass management and can allow a user to configure up to a 2.2 channel audio system with either stereo or mono subwoofers.

Product Considerations

  • It lacks an HDMI input
  • The STR's knob doesn't stand proud of the faceplate quite far enough for one finger to comfortably rest on it, and the knob isn't knurled, making it difficult to turn without a finger slipping off.
  • With Convert Analog enabled, the reviewer could hear the STR's noise from their listening chair, which was a bit disappointing.
  • It lacks a headphone jack
  • The app is not great, with unsuccessful connection and unreliable work

Comparisons (according to reviewers)

  • Vs Mark Levinson 8505 amplifier: The Levinson has a more sophisticated, smoother, and subtler sound with more clearly rendered soft reverbs and decays.
  • Vs McIntosh C47 preamplifier-DAC: As a line-level DAC and/or preamp, the STR's sound was as transparent as the C47's.

Takeaway: The STR is well-featured and transparent-sounding, with analog and digital inputs and outputs, and input-assignment flexibility. It includes ARC Genesis room-correction software, which optimizes the sound to the room.

How useful are hifi reviews? We consider them useful for three things: (1) Surfacing new products you should demo in person at a dealer. (2) Learning which products reviewers unanimously praise as the best they've ever heard (this means they probably are legitimately great). (3) Identifying a product's unique attributes that satisfy your idiosyncratic needs and tastes. Beyond that, we  discount what reviewers say because they heap praise on everything—rarely being negative for fear of souring relationships with manufacturers. Further, they seldom have more than a couple products on-hand at once, relying on their imperfect memories to compare to past products.

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